At an AAAS meeting (American Association for Advancement of Science), I presented a review of possible propulsion technologies for interstellar flight, as part of a symposium that brought together rocket scientists, anthropologists, linguists, and science fiction writers to talk about interstellar travel. The symposium got quite a lot of publicity (mostly of the gosh wow variety, and much of it emphasizing some very minor points). A lot of these are gone from the web, but some of the ones that are still up (so far) are: